Recorder.



C. W. BAKE @L C. P. MGGNNIS.

RECORDER.

APPLICATION FILED APR.25,1913.

Patented Juy 21, 119M-u 3 SHEETS-SHEET 1.

C. W. BAKE L G. P. MOGINMS. RECORDER.

APPLICATION FILED APR. 25,1913.

Patented July :21, 191@ 3 SHEETS-SHEET 2.

G. W. DAK

E 81. C. P.. MUGINNIS.

RECORDER.

v' PPL'IOATION FILED APR. Z5, 19N.

Panted July 21, 1914 3 SHEETS-SHEET 3.

Zw? @ya .f

UNITED erariale rentar ernten CHARLES W. BAKE AND CRAWFORD MCG-INNIS, OFCHICGG, ILLINOIS,I ASSIGNORS y T PYLE-NATIONAL ELECTRIC HEADLIGHT JMPN,O35' CHICAGO, ILLINOIS, A

. CORPORATION 0F NEW JERSEY.

tECDiE/DER.

nronaso.

Speeieatiou of Letters Patent.

ratenteaaaiy ai, rem.

vApplication filed April 25, 1913. Serial No. 763,497.

To all 'whom it may concern.:

lBe it known that we., CHARLES Vf. Dann and CRAWFORD P. MoGINNrs,citizens out the United States, residing at Chicago, 1n the 5 county ofCook and State of Illinois, have invented a certain new and usefulImprove ment in Recorders, of which the following is a speciication.

Our invention relates to improvements 1n indicators and has for oneobject to indicate violent changes in the velocity of'moving vehicles orother-moving parts. It 1s so arranged that it is in operation andindications are made only when suiiiciently violent changes are to berecorded. rlhus the life of the .blank record sheet or member isektremely long, since instead oit moving in response to any xed drivingmeans it operates only when it is necessary for 1t to operate to get arecord and the device thus needs a minimum of attention.

It is illustrated diagrammatically in one form' in the accompanyingdrawings, where- 1X1- Figure l is a side elevationin part section withparts broken away; Fig. 2 1s -a plan view in part section withpartsbroken away; llig. 3 is a front elevation in part section vwith partsbroken away; Fig. t is a side K elevation with parts broken awaysomewhat along the line lL-e of Fig. 2; Fig 5 is a plan View of one ofthe recording pendulums with parts in section; Fig. 6 is a section alongline 6 6 of Figr 3; and Fig. 7 is a plan view of the record-sheet. 4

Like parts are indicated by the same letter in all of the figures.

A isv a base upon which is mounted a cover Aheld in position |"by thelugs A2 and i0l the lock A5 and provided with a transparent window A4. I

-B is a bracket mounted on the hase A supw porting the record drum B1rotatably mounted thereon.

B2 is a tooth ratchet wheel keyed to the drum.'

B3 is an arm pivotally mounted on the bracket B provided with thetoothBl in engagement with the toothratchet wheel B1 and held againstthe ratchet wheel by the spring B5.

C is a bracket.

@l is a ,roller rotatably mounted thereon. C2 is a record sheet woundabout the roller and extending over and wound about the drum B1.

C3 is a shaft upon which the roll-erw@l is mounted. v

C4 is a spring disposed between the hub of the sleeve C5 on the bracketC and the portion of the roller to yieldingly resist its rotation. Y

CG is a feed pendulum free to swing upon a horizontal axis and supportedon the bracket C.

C7 is a feed arm pivotally mounted on the pendulum lever arm andprovided with a tooth C8 in opposition to the teeth on the tooth ratchetwheel 132.

C is a spring holding said tooth C8 in engagement with said wheel.

l) is a bracket mounted on the base A.

D1, U2 are horizontally disposed lugs proj ecting outwardly trom saidbracket.

1 D3 is a sleeve pivotally mounted upon said ugs.

D4 is a dat spring seat onsaid sleeve.

D5 is a spring on said lugs in opposition to said sleeve D8.

D 'is a pendulum lever rigidly mounted on said sleeve D3 perpendicularthereto and located in a horizontal plane andv free to swing in saidplane as the sleeve rotates.

D7 1s a pendulum bob on the lever D".

D8 is a set screw adapted to lock said pendulum bob in position on thelever D".

D9 is a recording lever projecting out# wa-rdly from the upper end ofsaid sleeve DE.

D1 is a stylus carriage pivotally mounted on the end of said lever D andspring held downwardly against'the record sheet on the drum B1. l

D is .a stylus carried on said stylus carriage and resting upon saidrecord sheet.

D12 is a dash, pot pivotally mounted on the sleeve C5 and connected bythe link D13 with the lever D to damp its vibration.

It will be evident that, whilewe have shown in our drawings an operativedevice, still many changes `might be made in size, shape and arrannement of parts Without departing material y from the spirit of ourinvention. We wish, therefore, that our drawings-be regarded as in asense'diagranunatic.

rlhe .use and. operation of our invention are as follows.: With.l ourdevice in position on a train, boat, car or other moving vehicle ormoving parts ot a moving vehicle the Fig.' 7 are,

is mounted suffers violent changes in direction the horizontal pendulumwill swing forward-por back as the case may be andcause thestylus toswing across the record sheet making a mark on the record sheet. The

weight of the pendulum bob, its distance' from the axis of rotation andthe tension of the spring will all be controlled or adjusted to providefor dierent forces and they will be calibrated against the record sheetso that, for instance, in case the mark goes overa certain distance itindicates a blow of 60,000 foot pounds'and for a lesser distance will be30,000'foot pounds and a lesser distance might be 2,000 or less. It is,of course, obvious that the calibration may be madel to suit theconvenience of the user.

The dash pot, of course, serves to damp the vibration'of the needle onthe stylus so that only one swing will be made and the stylus` will beimmediately returned to neutral position. Simultaneously, however, withthe movement of the stylus in response v to the horizontal pendulum thevertical penduluml will swing and rotate the ratchet wheel driving therecord sheet through an are subt'ended by one 'or two teeth as the casemay be, thus feeding the record sheet forward and leaving it ready for afurther record. By this arrangement, of course, a record is made onlywhen important changes are to be recorded and the record sheet movesonly when important changes are to be' recorded. Thus the life of therecord sheet is very long as under favorable conditions very few recordswill be made, and it is not necessary to waste a whole record sheet inan 'effort to get one or two occasional indications as is the case ofrecords into which the time element enters.

Our device is primarily intended for use on railroad trains and railroadcars, and it is necessary to find out only how often the engineer hasstarted or stopped too suddenly. The time when he did itis of noconsequence, since the devicel is inspected at the lend of each trip,and his record will depend only upon the frequency of such indications.

The record sheet is, of course, as indicated in Fig. 7, calibrated infoot pounds and it is only necessary to adjust the pendulum tocorrespond. The records shown thereon in of course, purely tentative andimaginary but are ofA such records as would 4 be produced in actualoperation.

We claim: l. In a. recorder a record blank and means for recordingthereon changes in velocityv and means responsive to said changes invelocity for actuating the record blank.

2. In a recorder a record blank, means for recording thereon theoccurrence of changes in velocity and their intensity andmeansresponsive to said changes in velocity for actuating the record blank.

3. In a recorder a record blank and Vmeans for' recording thereonchanges in velocity and means responsive to said changes in velocity foractuating the record blank, said means operative in unison.

l. In a recorder a record blank, means for recording thereon theoccurrence of changes in velocity and their intensity and meansresponsive to said changes in velocity for actuating the record blank,said means, operative in unison.

fr'. In a recorder a pendulum free to swing, means for yieldinglyresisting its oscillation, means for recording the oscillations of thependulum, a record blank vupon which the record is -made and means foractuating said blank, said means .comprising a freely swinging pendulum.

G. In a recorder a pendulum free to swing, means for yieldinglyresisting its oscillation, means for recording the oscillations of thependulum together with means for measuring the amplitude of saidoscillations, a record blank upon which the record is made and means foractuating said blank, said means comprising a. freely swinging pendulum.

7. A recorder comprising a drum, a record blank wound thereabout, a feedpendulum, means for rotatin said drum in response to oscillations of saifeed pendulum, a recording pendulum and means for recording oscillationsthereof upon said blank.

8. A recorder comprising a' drum, a record blank wound thereabout, afeed pendulum,.means for rotating said drum in response to oscillationsof said feed pendulum, a recording pendulum, means for recordingoscillations thereof upon said blank and meansfor recording upon saidblank the amplitude of said oscillations.

9. A recorder comprising a drum, a record blank wound thereabout,a feedpendulum, means for rotatinfr said drum in response to oscillations ofsaid feed pendulum, a recording pendulum, means forl recordingoscillations thereof upon said blank and means for recording upon saidblank the amplitude of said oscillations, said feed pendulum and saidrecording pendulum free. to oscillate independent one of the other.

10. In a recorder a plurality of endulums one of them a feed pendulumand the other a recording pendulum, one of them free to swing in avertical plane and the other free to swing in a horizontal plane.

11. In a recorder a feed pendulum free. to swing in a vertical plane anda recording pendulum free to swingin a horizontal plane.

12. In a recorder a feed pendulum free to swing in a vertical plane anda recording pendulum free to swing in a horizontal plane, said pendulumsindependent one 0f the other.

13. In a recorder a feed pendulum free to swing in a vertical plane anda recording pendulum free to swing in a horizontal plane, a recordingblank and means for feeding it forward responsive to the oscillations ofthe feed pendulum.

14. In a recorder a feed pendulum free to swing in a vertical plane anda recording` pendulum free to` swing ina horizontal plane, saidpendulums independent one of the other, a record blank and means forfeeding it forward `responsive to the oscillations lof the feedpendulum.

15. In a recorder a feed pendulum free to swing in a vertical plane anda recording pendulum free to swing in a horizontal plane, a record blankand means for feeding 1t. forward responsivel to the oscillations of thefeed pendulum, and means for recording the oscillation and the amplitudeof the oscillation of the recording pendulum.

1G'. In a recorder a feed pendulum free to swing in a` vertical planeand a recording pendulum Vfree to swing in a horizontal plane, saidpendulums independent one of the other, a recordhlank, means for feedingit forward responsive to the oscillations of the feed pendulum and meansfor recording the oscillation and amplitude of the oscillation of therecording pendulum.

17. In arecorder a feed pendulum free to swing in a verticalplane and arecording pendulum free to swing in a horizontal plane, a record blankand means for feeding 1t forward responsive to the oscillations of thefeed'pendulum and means for recording the oscillation of the recordingpendulum.

18. In a recorder a feed pendulum free to swing in a vertical plane anda recording pendulum free to swing in a horizontal plane, said pendulumsindependent one of the other, a record blank, means for feeding it`forward responsive tothe oscillations of the feed pendulum and means forrecording the oscillation of the recording pendulum.

Signed at Chicago,Y Illinois, this 15th day of April, 1913.

CHARLES W. DAKE. CRAWFORD P. MCGINNIS.

`VVitnesses:

MINNIE SUNDFAR, MINNIE M. IIINDENAU.

